Xcode控制台輸出中文

創建一個.m文件，然后將一下代碼加入.m文件中即可實現控制台輸出中文，具體代碼如下：

#ifndef Release

@implementation NSSet(Log)

- (NSString *)descriptionWithLocale:(id)locale indent:(NSUInteger)level 
{

    NSMutableString *desc = [NSMutableString string];
    NSMutableString *tabString = [[NSMutableString alloc] initWithCapacity:level];
    for (NSUInteger i = 0; i < level; ++i) {
        [tabString appendString:@"\t"];
    }
    
    NSString *tab = @"\t";
    if (level > 0) {
        tab = tabString;
    }
    [desc appendString:@"\t{(\n"];
    
    for (id obj in self) {
        if ([obj isKindOfClass:[NSDictionary class]]
            || [obj isKindOfClass:[NSArray class]]
            || [obj isKindOfClass:[NSSet class]]) {
            NSString *str = [((NSDictionary *)obj) descriptionWithLocale:locale indent:level + 1];
            [desc appendFormat:@"%@\t%@,\n", tab, str];
        } else if ([obj isKindOfClass:[NSString class]]) {
            [desc appendFormat:@"%@\t\"%@\",\n", tab, obj];
        } else if ([obj isKindOfClass:[NSData class]]) {
            // if is NSData，try parse
            NSError *error = nil;
            NSObject *result =  [NSJSONSerialization JSONObjectWithData:obj
                                                                options:NSJSONReadingMutableContainers
                                                                  error:&error];
            
            if (error == nil && result != nil) {
                if ([result isKindOfClass:[NSDictionary class]]
                    || [result isKindOfClass:[NSArray class]]
                    || [result isKindOfClass:[NSSet class]]) {
                    NSString *str = [((NSDictionary *)result) descriptionWithLocale:locale indent:level + 1];
                    [desc appendFormat:@"%@\t%@,\n", tab, str];
                } else if ([obj isKindOfClass:[NSString class]]) {
                    [desc appendFormat:@"%@\t\"%@\",\n", tab, result];
                }
            } else {
                @try {
                    NSString *str = [[NSString alloc] initWithData:obj encoding:NSUTF8StringEncoding];
                    if (str != nil) {
                        [desc appendFormat:@"%@\t\"%@\",\n", tab, str];
                    } else {
                        [desc appendFormat:@"%@\t%@,\n", tab, obj];
                    }
                }
                @catch (NSException *exception) {
                    [desc appendFormat:@"%@\t%@,\n", tab, obj];
                }
            }
        } else {
            [desc appendFormat:@"%@\t%@,\n", tab, obj];
        }
    }
    
    [desc appendFormat:@"%@)}", tab];
    
    return desc;
}

@end

@implementation NSArray (Log)

- (NSString *)descriptionWithLocale:(id)locale indent:(NSUInteger)level 
{

    NSMutableString *desc = [NSMutableString string];
    NSMutableString *tabString = [[NSMutableString alloc] initWithCapacity:level];
    for (NSUInteger i = 0; i < level; ++i) {
        [tabString appendString:@"\t"];
    }
    
    NSString *tab = @"";
    if (level > 0) {
        tab = tabString;
    }
    [desc appendString:@"\t(\n"];
    
    for (id obj in self) {
        if ([obj isKindOfClass:[NSDictionary class]]
            || [obj isKindOfClass:[NSArray class]]
            || [obj isKindOfClass:[NSSet class]]) {
            NSString *str = [((NSDictionary *)obj) descriptionWithLocale:locale indent:level + 1];
            [desc appendFormat:@"%@\t%@,\n", tab, str];
        } else if ([obj isKindOfClass:[NSString class]]) {
            [desc appendFormat:@"%@\t\"%@\",\n", tab, obj];
        } else if ([obj isKindOfClass:[NSData class]]) {
            
            NSError *error = nil;
            NSObject *result =  [NSJSONSerialization JSONObjectWithData:obj
                                                                options:NSJSONReadingMutableContainers
                                                                  error:&error];
            
            if (error == nil && result != nil) {
                if ([result isKindOfClass:[NSDictionary class]]
                    || [result isKindOfClass:[NSArray class]]
                    || [result isKindOfClass:[NSSet class]]) {
                    NSString *str = [((NSDictionary *)result) descriptionWithLocale:locale indent:level + 1];
                    [desc appendFormat:@"%@\t%@,\n", tab, str];
                } else if ([obj isKindOfClass:[NSString class]]) {
                    [desc appendFormat:@"%@\t\"%@\",\n", tab, result];
                }
            } else {
                @try {
                    NSString *str = [[NSString alloc] initWithData:obj encoding:NSUTF8StringEncoding];
                    if (str != nil) {
                        [desc appendFormat:@"%@\t\"%@\",\n", tab, str];
                    } else {
                        [desc appendFormat:@"%@\t%@,\n", tab, obj];
                    }
                }
                @catch (NSException *exception) {
                    [desc appendFormat:@"%@\t%@,\n", tab, obj];
                }
            }
        } else {
            [desc appendFormat:@"%@\t%@,\n", tab, obj];
        }
    }
    
    [desc appendFormat:@"%@)", tab];
    
    return desc;
}

@end

@implementation NSDictionary (Log)

- (NSString *)descriptionWithLocale:(id)locale indent:(NSUInteger)level 
{

    NSMutableString *desc = [NSMutableString string];
    NSMutableString *tabString = [[NSMutableString alloc] initWithCapacity:level];
    for (NSUInteger i = 0; i < level; ++i) {
        [tabString appendString:@"\t"];
    }
    
    NSString *tab = @"";
    if (level > 0) {
        tab = tabString;
    }
    
    [desc appendString:@"\t{\n"];
    
    // Through array, self is array
    for (id key in self.allKeys) {
        id obj = [self objectForKey:key];
        
        if ([obj isKindOfClass:[NSString class]]) {
            [desc appendFormat:@"%@\t%@ = \"%@\",\n", tab, key, obj];
        } else if ([obj isKindOfClass:[NSArray class]]
                   || [obj isKindOfClass:[NSDictionary class]]
                   || [obj isKindOfClass:[NSSet class]]) {
            [desc appendFormat:@"%@\t%@ = %@,\n", tab, key, [obj descriptionWithLocale:locale indent:level + 1]];
        } else if ([obj isKindOfClass:[NSData class]]) {
            
            NSError *error = nil;
            NSObject *result =  [NSJSONSerialization JSONObjectWithData:obj
                                                                options:NSJSONReadingMutableContainers
                                                                  error:&error];
            
            if (error == nil && result != nil) {
                if ([result isKindOfClass:[NSDictionary class]]
                    || [result isKindOfClass:[NSArray class]]
                    || [result isKindOfClass:[NSSet class]]) {
                    NSString *str = [((NSDictionary *)result) descriptionWithLocale:locale indent:level + 1];
                    [desc appendFormat:@"%@\t%@ = %@,\n", tab, key, str];
                } else if ([obj isKindOfClass:[NSString class]]) {
                    [desc appendFormat:@"%@\t%@ = \"%@\",\n", tab, key, result];
                }
            } else {
                @try {
                    NSString *str = [[NSString alloc] initWithData:obj encoding:NSUTF8StringEncoding];
                    if (str != nil) {
                        [desc appendFormat:@"%@\t%@ = \"%@\",\n", tab, key, str];
                    } else {
                        [desc appendFormat:@"%@\t%@ = %@,\n", tab, key, obj];
                    }
                }
                @catch (NSException *exception) {
                    [desc appendFormat:@"%@\t%@ = %@,\n", tab, key, obj];
                }
            }
        } else {
            [desc appendFormat:@"%@\t%@ = %@,\n", tab, key, obj];
        }
    }
    
    [desc appendFormat:@"%@}", tab];
    
    return desc;
}

@end

#endif

以上代碼實現了NSSet/NSDictionry/NSArray類型的展示。